Holder for thermionic valves and like electrical devices and means for securing it to supports



G. WAGSTAFF 2,461,487

KE ELECTRICAL HOLDER. FOR THERMIONIC VALVES AND LI F ab. 8, 1949.

DEVICES AND MEANS FOR, SECURING THEM TO SUPPORTS Filed Feb. 28, 1945 Fla. 6.

Invenior: W6- ;a ead; W #85 FIG. 4.

George UNITED STATES PATENT OFFICE HOLDER FOR THERMIONIC VALVES AND LIKE ELECTRICAL DEVICES AND MEANS FOR SECURING IT TO SUPPORTS George Wagstafl, Long-Eaton, England, asslgnor I to United-Carr Fastener Corporation, Cambridge, Mass.

Application February 28, 1945, Serial No. 580,252

In Great Britain March 20, 1944 3 Claims. (Cl. 173339) 1 This invention relates to holders for thermionic valves, plugs and like electrical devices and more particularly to moulded holders of ceramic or like material of the kind having a flange or 2 shape of the body and aperture. The flange l rests on the upper face of the panel 5 and the lower end of the body 2 projects through the aperture.

the like adapted to rest on one face of the sup- 5 The holder is secured by alocking member comport and a part adapted to project through an pr si g a split metal ring 1 having integral lugs aperturein t support or teeth 8 and bent portions 9. The ring is According to the present invention a holder forced over the projecting part of the body 2 of the kind referred to has the projecting part to Snap the lugs 8 into the recesses 3. T reformed with one or more recesses or slots adapt- 10 move the holder, 9. suitable tool is applied to ed to receive teeth or lugs or a locking member orce the portions 9 apart to open the ring and which is fitted over or round the projecting part, age the lugs 8 from the recesses 3. Any t secure t homer t t support desired numer of lugs 8 and recesses 3 may be The locking member may comprise a split ring p edof sheet metal having one or more lugs extending it A si t sp m tal washer I0 is interposed inwardly of the inner periphery of the ring. The between the lockin ring 1 and the underface of ring may have integral means, such as spring e panel 5 to hold the parts firmly n ont t feet, for resiliently engaging the face of the and prevent rattlin apertured support t w th parts against t- The recesses 3 preferably comprise slots extling or shaking loose. Alternatively a separate tending through the flan l and openi into resilient i or washer may b provided b the upper face of the holder as shown in Figs. 1 tween the locking member and. the support. The and 2- ThiS arrangement simplifies the mouldlocking member may comprise a continuous ung of t e holder and reduces costs. split ring if desired but an advantage of a split The flange l of the holder is also adapted to ring i th t t i il removed b pening th secure the lower half of a metal screening can ring by a suitable tool. The locking member is a in position- As shown in 3, the can part fitted over the projecting part of the holder until 0 comprises a cylindrical Wall I having an inthe lugs or teeth snap into the recesses in the wardly e t g flange 12 at o d defining projecting part, a D-shaped aperture. The can part is assembled To enable the invention to be fully understood Over the body Prior to the insertion of the holdit will now be described with reference to the in the aperture 6, and the flange I2 s mp accompanying drawin in whi h; between the flange l of the holder and the ad- Fig. 1 is a sectional view of the holder assem- J' face of t P nel 5. m onasupport, The assembled can part a may be provided Fig 2 is aplan View of t holder, with projecting bosses or slots (not shown) Fig. 3 is a plan view ofthe screen cap memadapted for making a yonet joint connection bar, with the other half of the screening can.

Figs. 4 and 5 are plan and side views of a lock- The can a y e p rmanently secured to the ing ring, holder by providing inwardly projecting detents Figs. 6 d 7 a plan d id vi w of a re il- 40 (not shown) in the wall ll, adjacent to the flange le t a h nd I, after the holder has been assembled in the Fig. 8 is a plan view of the apertured support can. on which the holder is mounted. It will be understood that the body 2 may have As shown in the accompanying drawings, the any irregular cross-section shape that will enholder comprises a moulding of ceramic or like sure that it can be inserted in a correspondingly material having a flange I and body 2 formed shaped aperture in the panel 5 in only one prewith recesses 3. The body would normally have determined position. The aperture defined by a series of apertures housing pin-receiving conthe flange of the can a will obviously be varied, tacts but these are omitted for the sake of clarto correspond with the cross-section of the body ity. The body 2 has a flattened side 4 whereby 2. the body is substantially U-shape in cross-sec- Iclaim: tion- The holder is assembled with e support 1. In combination with an electrical socket 5 by inserting the body through a D-shaped aperbody fo th n valves and like electrical u h y ing th r y aut mat l y devices which socket body is provided at one end sembled in correct position, on account of the- 56 with a flanged rim and a plurality of circumferentially spaced peripherally opening recesses extending below said rim and terminating short of an opposite end of said body; a holder for securing said body in an apertured support comprising a radially expandable split resilientannulus adapted to be expanded and slipped over an end of the socket body and provided with inwardly extending radial projections adapted to extend into the peripheral recesses in said body, and a sinusoidal ring adapted to surround said body andbe supported by said annulus between it and a support on which said socket is mounted.

2. In combination with an electrical socket body for thermionic valves and like electrical devices which socket body is provided at one end with a flanged rim and a plurality of circumferentially spaced peripherally'opening recesses extending below said rim terminating short of an opposite end of said body, a holder for securing said body to an apertured support comprising a radially expandable gapped resilient ribbon-like annulus adapted to be expanded and slipped over said socket body and provided with inwardly extending radial porjections adapted to be positioned in said peripheral radial recesses of said socket, said annulus providing a relatively broad -flat, bearing surface, and a sinusoidal spring ring supported by said bearing surface and disposed between it and a support in which said socket is mounted.

3. In combination with an electrical socket body for thermionic valves and like electrical devices which socket body is provided at one end with a flanged rim and a plurality of circumferentially spaced peripherally opening radial recesses extending below said rim terminating short of an opposite end of said body, a holder for securing said body to an apertured support comprising a radially expandable gapped resilient ribbon-like annulus adapted to be expanded and slipped over said socket body and provided with inwardly extending resilient projections adapted to extend into said peripheral radial recesses of said socket, depending angular extensions on the terminal ends of said gapped annulus providing means for expanding said annulus over said socket body, said annulus providing a relatively broad flat bearing surface, and a sinusoidal spring ring supported by said bearing surface and disposed between it and a support in which said socket is mounted.

GEORGE WAGSTAFF.

REFERENCES CITED The following references are of record in the file of this patent:'

UNITED STATES PATENTS Number Name Date 1,803,709 Johnson May 5, 1931 2,087,784 Schmitt July 20, 1937 2,107,254 Horn Feb. 1, 1938 2,248,817 Eiben July 8, 1941 2,352,126 Schmitt June 20, 1944 2,354,748 Franklin Aug. 1, 1944 FOREIGN PATENTS Number Country Date 683,908 France June 19, 1930 

